Novel observational evidence appears to confirm that when mass is supplied to massive black holes at low rates, only a fraction is actually accreted. Much of the gas may be lost in a low-speed magnetohydrodynamic wind.

中文翻译：

---

缓慢的黑洞吸积导致质量损失

新的观测证据似乎证实，当质量以低速率提供给大质量黑洞时，实际上只有一小部分被吸积。大部分气体可能会在低速磁流体动力风中流失。